

Spark Earth Science Final 1st Semester
Flashcard
•
Science
•
11th Grade
•
Practice Problem
•
Hard
Wayground Content
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Big Bang Theory?
Back
The Big Bang Theory states that at one time, the entire universe was confined to a dense, hot, supermassive ball, which then expanded to form the universe as we know it.
2.
FLASHCARD QUESTION
Front
What causes the day-night cycle on Earth?
Back
The day-night cycle on Earth is caused by the rotation of the Earth on its axis, where only the part of the Earth lighted by the Sun experiences daytime.
3.
FLASHCARD QUESTION
Front
What is the epicenter of an earthquake?
Back
The epicenter of an earthquake is the point on the surface of the Earth directly above the focus, where the seismic waves are first felt.
4.
FLASHCARD QUESTION
Front
Who was Edwin Hubble?
Back
Edwin Hubble was an astronomer who discovered that other galaxies existed beyond our own galaxy, leading to the understanding of an expanding universe.
5.
FLASHCARD QUESTION
Front
What does a blue shift of light from a star indicate?
Back
A blue shift of light from a star indicates that the star is moving closer to Earth.
6.
FLASHCARD QUESTION
Front
What is the Nebular Theory?
Back
The Nebular Theory suggests that the solar system formed from a rotating cloud of gas and dust, which collapsed under its own gravity.
7.
FLASHCARD QUESTION
Front
What is the significance of the Earth's rotation?
Back
The Earth's rotation is significant because it causes the day-night cycle and affects weather patterns and ocean currents.
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